This is a classic Pen Plotter from the 1980's It appears to be amazingly resilient.
Its simular to a normal printer in that it moves the paper and the printhead.
The difference being the printhead is a pen that has been selected from a carousel containing 8 pens.
Another nifty feature is using the controls on the right of the plotter it is possible to
use it to digitise information and to manually plot.
The above image shows a plot in progress.